Troubleshooting “No Signal” Issue on the Monitor

  • A “No Signal” error on your monitor can leave you confused.
  • It indicates a likely hardware malfunction that should be checked for repair or replacement.
  • To help you solve your display problems, here are some troubleshooting tips you can try if your PC screen has no signal.
  • You can update the graphics driver manually by going to the manufacturer’s website and searching for the latest driver for your video card.

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Why Does My Phone Say No Service

If you have any connectivity issues, rebooting your phone may solve the problem.

T Mobile Network Issues

To fix problems with T-Mobile, try reinstalling your SIM card, setting up an APN, or changing the network settings. A problem with T-Mobile could be caused by data limitations, low coverage, or 4G compatibility issues.

Follow the steps one by one until you are able to fix the problem of no signal on monitor on your Windows PC.

If your TV is not receiving a signal from your TV box, or if your TV is set to the wrong input, it will display a “No Signal”, “No Source”, or “No Input” message on your TV screen. 

The monitor no signal issue can be caused by a loose connection between your monitor and your computer. When your Windows system is running, you should first check that you have a firmly attached video cable if you see a no signal message.

It doesn’t matter if your computer’s fans are working if you don’t see anything on the screen that you can use. A “No Signal” error on your monitor can leave you confused.

T Mobile Service Down

A part of the ‘big four’ along with AT&T, Verizon and Sprint, T-Mobile is one of the busiest US carriers. When T-Mobile customers expect service to be available 24/7, it can sometimes fail, resulting in service outages that occur at unexpected times.

There are usually a few simple solutions to this type of problem, but if none of them work, a hardware malfunction may be the cause. In the event that your PC screen does not have a signal, follow these troubleshooting tips to solve your display problems.

What causes the “no signal” error on your monitor?

  1. Having problems with the power and cables
  2. Resolution of the monitor
  3. Problems with video cards
  4. A source of input that is inappropriate

How to troubleshoot the “No Signal” error on your monitor?

Updated: February 2024

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Make sure the video card is properly inserted in the slot

  1. Connect all cables (including power cords, if applicable) and devices to the computer and turn it off.
  2. Find the graphics card on the inside of the computer case.
  3. Make sure the graphic card is firmly inserted into the slot on the motherboard after removing it from the computer.
  4. Power the computer with the monitor’s power cable.
  5. The monitor should be turned on following 30 seconds to a minute of pressing the power switch and holding it for 30 seconds to a minute.

Make sure you have selected the correct input source

  1. It is important to turn on your computer and monitor.
  2. On the screen’s edge, press the menu button.
  3. Make sure the monitor is connected to your computer’s VGA port. Select the VGA input source if your monitor is connected to your computer’s VGA port.

Update the graphics driver

Update the graphics driver manually: You can update the graphics driver manually by going to the manufacturer’s website and searching for the latest driver for your video card. Be sure to select a driver that is compatible with your Windows system.

T-mobile Network Issues

T-Mobile may be able to assist you if you encounter problems.

Is Tmobile Down

800-937-8997 is the phone number for T-Mobile customer service.

No Signal On Tv

There is usually a connection between the High-Definition Multimedia Interface (HDMI) cables and the ports that causes a no signal problem. There could be some slight damage to the ports if the connections don’t fit tightly or slide out. You can just switch to another HDMI port if it’s not too serious. (Many TVs have at least two HDMI ports).

Updating drivers automatically: If you don’t have the time, patience, or computer skills to update your graphics driver manually, you can do it automatically with a third-party program.

T-mobile No-service

Choose your network provider from the list of mobile networks > Network operators in Settings. When prompted, select your provider.

RECOMMENATION: Click here for help with Windows errors.

Frequently Asked Questions

A loose connection between your monitor and your computer is the reason why there is no signal. If you get a "No Signal" message while running Windows, the first thing you should do is check that your compatible video cable is properly connected.

If you are having problems with your TVs or monitors not showing a signal when you connect them to your computer via HDMI jacks, don't worry. The message "No Signal" means that the TV or monitor is not receiving an input signal from the currently selected source.

  1. Turn off your computer.
  2. Disconnect the cable from the monitor to the computer and plug it back in.
  3. Reconnect the cable between the monitor and the PC.
  4. If possible, replace the monitor with another monitor.
  5. Open the computer case and locate the video card.

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Mark Ginter is a tech blogger with a passion for all things gadgets and gizmos. A self-proclaimed "geek", Mark has been blogging about technology for over 15 years. His blog,, covers a wide range of topics including new product releases, industry news, and tips and tricks for getting the most out of your devices. If you're looking for someone who can keep you up-to-date with all the latest tech news and developments, then be sure to follow him over at Microsoft.